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 Post subject: 2009 9-3 door mirror.
PostPosted: Tue Mar 13, 2018 10:52 pm 
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Saab Nut

Joined: Fri Jun 10, 2005 5:53 pm
Posts: 1956
Location: N W London
Car Model: 9 3 Aero Combi 2.0T 2009
Replaced mirror motor.

Replaced adjustment switch.

No improvement to this fault -

when starting off and turning on the foldout mirror it takes a minute or so and is noisy
and creaky. The nearside one is quick and silent;

Randomly, when driving, the driver's door mirror decides to adjust itself with much whirring
and creaking, taking a minute to adjust back to the preset position.

The nearside mirror is silent and takes very little time and does it properly. It does not set itself
off randomly while driving.

Why is the mirror taking so long, why is it noisy and why does it randomly set itself going?.

Is the next step to replace the folding mirror assembly complete? (Neos £78 recycled available.)

Or is there a fix to be done?

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PostPosted: Wed Mar 14, 2018 11:53 am 
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Joined: Fri Mar 22, 2013 9:15 pm
Posts: 2319
Location: South West Scotland
Car Model: Saab 9-3 1.8t - Volvo S80
If it creaks its because the joints knackered (there's a spring, motor, friction).

If its adjusting, maybe a short or something wrong with the memory?


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PostPosted: Wed Mar 14, 2018 11:57 am 
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Saab Nut

Joined: Fri Jun 10, 2005 5:53 pm
Posts: 1956
Location: N W London
Car Model: 9 3 Aero Combi 2.0T 2009
But where is the memory bit?

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PostPosted: Wed Mar 14, 2018 4:01 pm 
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UKS Encyclopædia N-Z
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Joined: Sun Aug 15, 2004 9:39 am
Posts: 39057
Location: SW Herts
Car Model: 9-5 Aero est. 9-3 Carlsson
The mirror memory signal is sent from the Driver's Seat Module over the computer I-bus network to the Driver's Door Module (DDM). The DDM passes the movement request over the I-bus to the Passenger Door Module (PDM) which operates the passenger mirror.

The folding is a direct link from the door switch to the DDM which folds the driver's mirror and sends an I-Bus signal to the PDM to get the other mirror to fold.

If the passenger door mirror is folding correctly, then it suggests that the folding problem is confined to the driver's mirror as the DDM is recognising the switch and knows that the mirrors want to fold.

The memory mirror movement... is that confined to the driver's mirro, or do both mirrors try and move randomly?

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PostPosted: Wed Mar 14, 2018 4:11 pm 
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Saab Nut

Joined: Fri Jun 10, 2005 5:53 pm
Posts: 1956
Location: N W London
Car Model: 9 3 Aero Combi 2.0T 2009
Drivers mirror only.
Yet I have standard non-electric seats!
Welcome Will, the human encyclopaedia.

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PostPosted: Wed Mar 14, 2018 4:22 pm 
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UKS Encyclopædia N-Z
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Joined: Sun Aug 15, 2004 9:39 am
Posts: 39057
Location: SW Herts
Car Model: 9-5 Aero est. 9-3 Carlsson
You won't have any memory in the mirror. If they are working randomly, you have a short in something. Hopefully somewhere obvious in the wiring and not in the DDM.

I would take the glass out and have a look at the wiring.

Release the ends of the wire clip that holds the glass. Then work your way in. Three long screws for the motor. Four small screws for the black surround. Two more for the painted back, along with trying to release the 8 legs that also clip the back on.

Then you can see both sides of the mirror frame and all the wiring.

My guess is that there's a wire caught in the hinge area.

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PostPosted: Wed Mar 14, 2018 4:24 pm 
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Saab Nut

Joined: Fri Jun 10, 2005 5:53 pm
Posts: 1956
Location: N W London
Car Model: 9 3 Aero Combi 2.0T 2009
Thanks Will.
If dry I'll give it a go tomorrow.

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